640768990032

Names of 640768990032

• Cardinal: 640768990032 can be written as Six hundred forty billion, seven hundred sixty-eight million, nine hundred ninety thousand and thirty-two.

Scientific notation

• Scientific notation: 6.40768990032 × 10¹¹

Factors of 640768990032

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 99

Divisors of 640768990032

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 41 48 53 54 72 81 82 106 108 123 144 159 162 164 212 216 243 246 318 324 328 369 424 432 477 486 492 636 648 656 729 738 848 954 972 984 1107 1272 1296 1431 1458 1476 1908 1944 1968 2173 2187 2214 2544 2809 2862 2916 2952 3321 3816 3888 4293 4346 4374 4428 5618 5724 5832 5904 6519 6561 6642 7632 8427 8586 8692 8748 8856 9963 11236 11448 11664 12879 13038 13122 13284 16854 17172 17384 17496 17712 19557 19926 22472 22896 25281 25758 26076 26244 26568 29889 33708 34344 34768 34992 38637 39114 39852 44944 50562 51516 52152 52488 53136 58671 59778 67416 68688 75843 77274 78228 79704 89667 101124 103032 104304 104976 115169 115911 117342 119556 134832 148877 151686 154548 156456 159408 176013 179334 202248 206064 227529 230338 231822 234684 239112 269001 297754 303372 309096 312912 345507 347733 352026 358668 404496 446631 455058 460676 463644 469368 478224 528039 538002 595508 606744 618192 682587 691014 695466 704052 717336 893262 910116 921352 927288 938736 1036521 1056078 1076004 1191016 1213488 1339893 1365174 1382028 1390932 1408104 1434672 1584117 1786524 1820232 1842704 1854576 2047761 2073042 2112156 2152008 2382032 2679786 2730348 2764056 2781864 2816208 3109563 3168234 3573048 3640464 4019679 4095522 4146084 4224312 4304016 4752351 5359572 5460696 5528112 5563728 6103957 6143283 6219126 6336468 7146096 8039358 8191044 8292168 8448624 9328689 9504702 10719144 10921392 12059037 12207914 12286566 12438252 12672936 14257053 16078716 16382088 16584336 18311871 18429849 18657378 19009404 21438288 24118074 24415828 24573132 24876504 25345872 27986067 28514106 32157432 32764176 36177111 36623742 36859698 37314756 38018808 48236148 48831656 49146264 49753008 54935613 55972134 57028212 64314864 72354222 73247484 73719396 74629512 76037616 83958201 96472296 97663312 98292528 108531333 109871226 111944268 114056424 144708444 146494968 147438792 149259024 164806839 167916402 192944592 217062666 219742452 223888536 228112848 251874603 289416888 292989936 294877584 325593999 329613678 335832804 434125332 439484904 447777072 494420517 503749206 578833776 651187998 659227356 671665608 755623809 868250664 878969808 976781997 988841034 1007498412 1302375996 1318454712 1343331216 1483261551 1511247618 1736501328 1953563994 1977682068 2014996824 2604751992 2636909424 2966523102 3022495236 3907127988 3955364136 4029993648 4449784653 5209503984 5933046204 6044990472 7814255976 7910728272 8899569306 11866092408 12089980944 13349353959 15628511952 17799138612 23732184816 26698707918 35598277224 40048061877 53397415836 71196554448 80096123754 106794831672 160192247508 213589663344 320384495016 640768990032
• Sum of all divisors σ(n): 1944241888680
• Sum of proper divisors (its aliquot sum) s(n): 1303472898648
• 640768990032 is an abundant number, because the sum of its proper divisors (1303472898648) is greater than itself. Its abundance is 662703908616

Bases of 640768990032

• Binary: 1001010100110000110011101101101101010000₂
• Hexadecimal: 0x9530CEDB50
• Base-36: 86D5B900

Squares and roots of 640768990032

• 640768990032 squared (640768990032²) is 410584898586629315361024
• 640768990032 cubed (640768990032³) is 263090070789745610663046971937312768
• The square root of 640768990032 is 800480.4744851681
• The cube root of 640768990032 is 8621.1889178233

Scales and comparisons

• 640,768,990,032 seconds is equal to 20,374 years, 24 weeks, 3 days, 18 hours, 7 minutes, 12 seconds.
• To count from 1 to 640,768,990,032 would take you about forty thousand, seven hundred forty-eight years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 640768990032 cubic inches would be around 718.4 feet tall.

Recreational maths with 640768990032

• 640768990032 backwards is 230099867046
• 640768990032 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640768990032's digits is 54
• More coming soon!